#include<bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
const int N=2e5+10;
#define INF 0x3f3f3f3f;
typedef long long int ll;
#define close(); std::ios::sync_with_stdio(false);cin.tie(0),cout.tie(0);
//----------------------------------------------------------------------------//
int n;
void solve()
{
	cin>>n;
	if(n&1) cout<<"YES"<<'\n';
	else {cout<<"NO"<<'\n';return;}

	int cur=2*n;
	for(int i=1;i<=n;i+=2)  cout<<i<<" "<<cur--<<'\n';
	for(int i=2;i<n;i+=2)  cout<<i<<" "<<cur--<<'\n';
}

int main()
{
	close();
	int T; cin>>T;
	while (T--) solve();
	return 0;
}